Capability and ExperienceGas Cleaning

41Countries

165Offices

40,400People

• Hydrocarbons• Minerals,Metals&

Chemicals• Power• Infrastructure

Gas Cleaning

77process plants

WorleyParsons Gas Cleaning has built a reputation as a responsive, solutions-driven organization with strong technical qualifications and a proven record of accomplishment by delivering high quality, niche process engineering services at a cost competitive price. WorleyParsons Gas Cleaning provides specialized process engineering and multi-disciplinary capabilities to the minerals & metals, hydrocarbons (downstream), and power industries.

Customers depend on our team to provide:• Process engineering• Process gas handling and cleaning system design• Process troubleshooting and optimization• Process plant fugitive emissions control• Process modeling• Heat recovery and energy optimization• Field testing and monitoring• Evaluation of new processes• Process operations training

Scope of services include feasibility / conceptual studies, basic and detailed engineering, and plant commissioning support.

WorleyParsons Gas Cleaning successfully executes strong schedule performance and effective cost control and delivers innovative, high quality products and services. The end results of our engineering services are enhanced plant operating performance, employee safety, and a cleaner environment.

46major customers

Capability Overview

Process Gas Handling & Cleaning System DesignWorleyParsons Gas Cleaning can provide customers with gas handling system designs for both ferrous and non-ferrous metallurgical furnaces, including drying, calcining / roasting, smelting / melting, heating, and refining. Specific capabilities surrounding process gas handling system design include process gas handling and cleaning system design.

• Process gas characterization• Process gas heat recovery, including waste heat boilers and heat exchangers• Process gas conditioning, including combustion chambers, water-cooled ducts, and

evaporative coolers• Flue gas desulfurization (FGD)• Process NOx control• Gas cleaning system equipment selection, including baghouses, scrubbers,

electrostatic precipitators (ESP’s) and fans

Energy Optimization & Greenhouse Gas (GHG) EmissionsWorleyParsons Gas Cleaning has highly specialised personnel who are experienced in heat recovery and energy optimization, including process plant energy intensity assessments, and process unit energy optimization, which directly impact GHG emissions. Out team regularly performs energy assessments for process equipment and off-gas systems. Potentially up to 50% of energy input into a pyrometallurgical process could be lost through the off-gas. WorleyParsons identifies practical approaches to recover heat from the off-gas in the form of steam, preheated air, or direct recycle that can be used in other processes to reduce fuel consumption. We assesses energy usage in all areas of a process plant. These energy intensity evaluations provide an understanding of total energy consumption by each process unit and identify opportunities for efficiency gains, energy savings, and reduction in GHG emissions. Specific capabilities include:

• Audit and assessment of existing process operations with respect to productivity, efficiency, and environmental considerations

• Benchmarking of energy consumption in process operations• Determination of GHG emissions associated with process operations, and

development of process strategies aimed at reduction of GHG’s• Evaluation of material inputs, equipment capabilities and operating practices aimed

at improved operating efficiency and reduction of GHG generation

WorleyParsons Project Phases

Process Plant Fugitive Emissions ControlWorleyParsons Gas Cleaning has accumulated a wealth of valuable knowledge and experience in reducing fugitive emissions from plants in order to achieve environmental compliance requirements. Our team also has expertise in the engineering and design of industrial ventilation systems. Specific capabilities in the areas of fugitive emissions prevention and industrial ventilation include:

• Protecting employees and equipment from heat stress and dust exposure• Field measurements and emissions quantification• Secondary emissions control• Molten metal transfer emissions control• Process vessels secondary hooding• Meet environmental compliance for visible emissions through building roof line• Materials handling dust control

Smart-Gas™ TechnologySmart-Gas™ is a proven low maintenance, user-friendly and modular tool using proprietary software which enables meltshops to optimize their EAF’s total energy usage in real-time, while providing guaranteed minimum overall net savings of at least US$1.00/ton plus safety and environmental benefits without the need to measure off-gas chemistry.

Validated over thousands of heats in multiple installations around the world, Smart-Gas™ also provides a continuously updated energy balance for every heat, historical tracking of furnace energy performance, assessment of injection carbon recovery, and comprehensive hands-on operator training for enhanced learning in both open and closed-loop control conditions. In addition, Smart-Gas™ can be readily customized to provide similar benefits to other energy intensive industries including nonferrous, power generation, cement, and petrochemicals.

Process Evaluation and OptimizationWorleyParsons Gas Cleaning performs a wide range of process evaluation studies for existing plant operations for both ferrous and non-ferrous metallurgical applications. Typical studies involve process audits, energy audits and determination of requirements for adjustment of operating practices and evaluation of upgrades required for process equipment. Specific tasks may include:

• Process evaluation and optimization• Evaluation of process flow sheets for existing processes• Development of process flow sheets for new processes• Techno-economic evaluation of new process technologies• Pilot scale testing for new process technologies• Process vessel design/re-design• Development of process sensors to provide enhanced process control• Development of modified operating practices• Benchmarking of raw material consumption in process operations• Debottlenecking and process optimization for ferrous, non-ferrous industries

Capability Overview

Process Operations Training and Start-up AssistanceWorleyParsons Gas Cleaning has the expertise to deliver the start-up of process equipment, such as electric arc furnaces and ladle furnaces. Services span the fields of equipment selection, classroom training, as well as hands-on training and development of operating practices. Capabilities include:

• Development of customized process training programs• Development of operating practices• Assistance with selection of raw materials• Hands-on training in the plant• Training the Trainers – programs are developed to assist supervisors in developing

plant training programs for their specific areas of responsibility• Coordination of benchmarking activities at similar process operations• Assistance with obtaining government grants for training• List of specific process training modules are available upon request

Engineering Design of Kilns and FurnacesWorleyParsons Gas Cleaning has leading edge capabilities in the engineering design of kilns and furnaces. Our kiln and furnace design applications offer:

• Process design and metallurgical expertise• Unique design application and expertise in copper cooling technologies and

refractories• Design of high power, high productivity units• Design of various furnace types (electric furnace, blast furnace, cupola, fluid bed,

and solid/gas reaction)• Long campaign life, operating time, and less maintenance• Specialized applications to obtain high processing rates• Numerous proven retrofit improvements and greenfield installations• Commissioning, ramp-up, and debottlenecking/optimization expertise

Process ModelingWorleyParsons Gas Cleaning utilizes proprietary and in-house mathematical models for process simulation to optimize system design of gas handling systems and secondary fume control systems in process plants. We use Computational Fluid Dynamic (CFD) models as an effective design tool to predict the performance of gas handling systems for process plants. CFD provides the means to compare the relative performance of several design scenarios. Specific benefits of our CFD modeling techniques include:

• Predicting heat and contaminant exposure levels• Evaluating performance of ventilation systems in process plants• Predicting airflow patterns and contaminant migration paths• Optimizing primary and secondary capture hood performance• Predicting and optimizing process gas mixing and combustion systems• Evaluating burner configuration and selection

Our Vision

WorleyParsons will be the preferred global provider of technical, project and operational support services to our customers, using the distinctive WorleyParsons culture to create value for them and prosperity for our people.

Leadership

• Committed, empowered and rewarded people

• EcoNomics™ – Delivering profitable sustainability

• Integrity in all aspects of business

• Energy and excitement• Minimum bureaucracy

Relationships

• Rapport with all stakeholders

• Open and respectful• Collaborative approach

to business

Agility

• Smallest assignment to world-scale developments

• Local capability with global leverage

• Responsive to customer preferences

• Optimum solutions customized to needs

Performance

• Zero harm• Results for our customers

and other stakeholders• World-class resources,

capability and experience

Rev02 May-09

For further information about our global capability email: gascleaning@worleyparsons.com

www.worleyparsons.com

Rev02 May-09